Alexander, AnnabelLongdell, JevonSellars, MatthewManson, Neil2015-12-070031-9007http://hdl.handle.net/1885/23258We demonstrate photon echoes in Eu3:Y2SiO5 by controlling the inhomogeneous broadening of the Eu3+F07↔D05 optical transition. This transition has a linear Stark shift, and we induce inhomogeneous broadening by applying an external electric field gradienKeywords: Electric field effects; Quantum theory; Switching systems; Optical transition; Quantum memory; Stark shift; Photons200610.1103/PhysRevLett.96.0436022015-12-07